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GB/T 45040-2024: Bedding - Test method for air permeability of latex products
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Bedding - Test method for air permeability of latex products
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GB/T 45040-2024
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Basic data | Standard ID | GB/T 45040-2024 (GB/T45040-2024) | | Description (Translated English) | Bedding - Test method for air permeability of latex products | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | W55 | | Classification of International Standard | 59.080 | | Word Count Estimation | 10,169 | | Date of Issue | 2024-12-31 | | Date of Implementation | 2025-07-01 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 45040-2024: Bedding - Test method for air permeability of latex products---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Bedding - Test method for air permeability of latex products
Test method for air permeability of latex bedding products
ICS 59.080
CCS W 55
National Standard of the People's Republic of China
Released on 2024-12-31
2025-07-01 Implementation
State Administration for Market Regulation
The National Standardization Administration issued
Foreword
This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for standardization work Part 1.Structure and drafting rules for standardization documents"
Drafting is required.
Please note that some of the contents of this document may involve patents. The issuing organization of this document does not assume the responsibility for identifying patents.
This document was proposed by the China National Textile and Apparel Council.
This document is under the jurisdiction of the National Technical Committee on Standardization of Home Textiles (SAC/TC 302).
This document was drafted by. Luolai Life Science Co., Ltd., Wenzhou Quality and Technology Testing Science Research Institute, Nantong Fiber Inspection
Institute, Violet Home Textile Technology Co., Ltd., Jiangsu Jinshiyuan Latex Products Co., Ltd., Shanghai Zhenao Biotechnology Co., Ltd.,
Shandong Jinhao Home Textile Group Co., Ltd. and Wenzhou Fangyuan Instrument Co., Ltd.
The main drafters of this document are. Huang Wangsen, Miao Xiaoqin, Qian Weiwei, Chen Yongbing, Zhou Hua, Tao Yongying, Feng Lian, Wang Qiang, Qu Zuqiang,
Cheng Jian.
Test method for air permeability of latex bedding products
1 Scope
This document describes the test method for the air permeability of latex bedding products.
This document is applicable to the air permeability test of latex pillows, latex pads and other latex products for bedding.
Follow the instructions.
2 Normative references
The contents of the following documents constitute the essential clauses of this document through normative references in this document.
For referenced documents without a date, only the version corresponding to that date applies to this document; for referenced documents without a date, the latest version (including all amendments) applies.
in this document.
GB/T 6529 Standard atmospheres for conditioning and testing textiles
3 Terms and definitions
The following terms and definitions apply to this document.
3.1
Air permeability
Air permeability properties of latex products.
Note. It is expressed as the rate of air flow through the test specimen under certain test prepressure (3.2), specified test area, pressure drop and time conditions.
[Source. GB/T 5453-1997, Chapter 3, with modifications]
3.2
preloading
The force generated by the human body's lying, sitting, leaning back and other activities when using latex products is evenly applied to the specified
Pressure on area.
4 Principle
Apply pre-pressure to the sample, and measure the air flow through the specified area of the sample within a certain period of time under the specified pressure drop conditions.
The speed of the sample is shown in Figure 1.
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